- Broadcast engineering and IT related links and stuff. Maybe some music, films and other things.

Wednesday, March 23, 2016

Tech Breakfast – “Encryption”, Soho Screening rooms, London

A presentation I gave; starting with the fundamentals of cryptography (difference between symmetric and public-key etc), I talked about encryption techniques used in the Enigma machine (with a genuine, working example) through to HDCP and the other forms of content protection used in our industry:

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When you can measure what you are speaking about, and express it in numbers, you can know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind: it may be the beginning of knowledge but you have scarcely, in your thoughts, advanced to the stage of science.